So many seem to forget
Sorry, but back in 1972, no one was sad the Moon program would stop with Apollo 17 because they knew the shuttle was coming and also because Earth orbit was the obvious place to go: halfway to anywhere (Heinlein), easyest way to get to vacuum, microgravity , Earth investigation and space telescopes.
Changing our mind about the view we had back then is the one thing I'm worried about: because it means that view and the current one are rather hard to defend.
